diff options
Diffstat (limited to 'AppPkg/Applications/Python/Python-2.7.10/Modules/_csv.c')
| -rw-r--r-- | AppPkg/Applications/Python/Python-2.7.10/Modules/_csv.c | 1629 |
1 files changed, 1629 insertions, 0 deletions
diff --git a/AppPkg/Applications/Python/Python-2.7.10/Modules/_csv.c b/AppPkg/Applications/Python/Python-2.7.10/Modules/_csv.c new file mode 100644 index 0000000000..ab0dbe4166 --- /dev/null +++ b/AppPkg/Applications/Python/Python-2.7.10/Modules/_csv.c @@ -0,0 +1,1629 @@ +/* csv module */
+
+/*
+
+This module provides the low-level underpinnings of a CSV reading/writing
+module. Users should not use this module directly, but import the csv.py
+module instead.
+
+**** For people modifying this code, please note that as of this writing
+**** (2003-03-23), it is intended that this code should work with Python
+**** 2.2.
+
+*/
+
+#define MODULE_VERSION "1.0"
+
+#include "Python.h"
+#include "structmember.h"
+
+
+/* begin 2.2 compatibility macros */
+#ifndef PyDoc_STRVAR
+/* Define macros for inline documentation. */
+#define PyDoc_VAR(name) static char name[]
+#define PyDoc_STRVAR(name,str) PyDoc_VAR(name) = PyDoc_STR(str)
+#ifdef WITH_DOC_STRINGS
+#define PyDoc_STR(str) str
+#else
+#define PyDoc_STR(str) ""
+#endif
+#endif /* ifndef PyDoc_STRVAR */
+
+#ifndef PyMODINIT_FUNC
+# if defined(__cplusplus)
+# define PyMODINIT_FUNC extern "C" void
+# else /* __cplusplus */
+# define PyMODINIT_FUNC void
+# endif /* __cplusplus */
+#endif
+
+#ifndef Py_CLEAR
+#define Py_CLEAR(op) \
+ do { \
+ if (op) { \
+ PyObject *tmp = (PyObject *)(op); \
+ (op) = NULL; \
+ Py_DECREF(tmp); \
+ } \
+ } while (0)
+#endif
+#ifndef Py_VISIT
+#define Py_VISIT(op) \
+ do { \
+ if (op) { \
+ int vret = visit((PyObject *)(op), arg); \
+ if (vret) \
+ return vret; \
+ } \
+ } while (0)
+#endif
+
+/* end 2.2 compatibility macros */
+
+#define IS_BASESTRING(o) \
+ PyObject_TypeCheck(o, &PyBaseString_Type)
+
+static PyObject *error_obj; /* CSV exception */
+static PyObject *dialects; /* Dialect registry */
+static long field_limit = 128 * 1024; /* max parsed field size */
+
+typedef enum {
+ START_RECORD, START_FIELD, ESCAPED_CHAR, IN_FIELD,
+ IN_QUOTED_FIELD, ESCAPE_IN_QUOTED_FIELD, QUOTE_IN_QUOTED_FIELD,
+ EAT_CRNL
+} ParserState;
+
+typedef enum {
+ QUOTE_MINIMAL, QUOTE_ALL, QUOTE_NONNUMERIC, QUOTE_NONE
+} QuoteStyle;
+
+typedef struct {
+ QuoteStyle style;
+ char *name;
+} StyleDesc;
+
+static StyleDesc quote_styles[] = {
+ { QUOTE_MINIMAL, "QUOTE_MINIMAL" },
+ { QUOTE_ALL, "QUOTE_ALL" },
+ { QUOTE_NONNUMERIC, "QUOTE_NONNUMERIC" },
+ { QUOTE_NONE, "QUOTE_NONE" },
+ { 0 }
+};
+
+typedef struct {
+ PyObject_HEAD
+
+ int doublequote; /* is " represented by ""? */
+ char delimiter; /* field separator */
+ char quotechar; /* quote character */
+ char escapechar; /* escape character */
+ int skipinitialspace; /* ignore spaces following delimiter? */
+ PyObject *lineterminator; /* string to write between records */
+ int quoting; /* style of quoting to write */
+
+ int strict; /* raise exception on bad CSV */
+} DialectObj;
+
+staticforward PyTypeObject Dialect_Type;
+
+typedef struct {
+ PyObject_HEAD
+
+ PyObject *input_iter; /* iterate over this for input lines */
+
+ DialectObj *dialect; /* parsing dialect */
+
+ PyObject *fields; /* field list for current record */
+ ParserState state; /* current CSV parse state */
+ char *field; /* build current field in here */
+ int field_size; /* size of allocated buffer */
+ int field_len; /* length of current field */
+ int numeric_field; /* treat field as numeric */
+ unsigned long line_num; /* Source-file line number */
+} ReaderObj;
+
+staticforward PyTypeObject Reader_Type;
+
+#define ReaderObject_Check(v) (Py_TYPE(v) == &Reader_Type)
+
+typedef struct {
+ PyObject_HEAD
+
+ PyObject *writeline; /* write output lines to this file */
+
+ DialectObj *dialect; /* parsing dialect */
+
+ char *rec; /* buffer for parser.join */
+ int rec_size; /* size of allocated record */
+ int rec_len; /* length of record */
+ int num_fields; /* number of fields in record */
+} WriterObj;
+
+staticforward PyTypeObject Writer_Type;
+
+/*
+ * DIALECT class
+ */
+
+static PyObject *
+get_dialect_from_registry(PyObject * name_obj)
+{
+ PyObject *dialect_obj;
+
+ dialect_obj = PyDict_GetItem(dialects, name_obj);
+ if (dialect_obj == NULL) {
+ if (!PyErr_Occurred())
+ PyErr_Format(error_obj, "unknown dialect");
+ }
+ else
+ Py_INCREF(dialect_obj);
+ return dialect_obj;
+}
+
+static PyObject *
+get_string(PyObject *str)
+{
+ Py_XINCREF(str);
+ return str;
+}
+
+static PyObject *
+get_nullchar_as_None(char c)
+{
+ if (c == '\0') {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+ else
+ return PyString_FromStringAndSize((char*)&c, 1);
+}
+
+static PyObject *
+Dialect_get_lineterminator(DialectObj *self)
+{
+ return get_string(self->lineterminator);
+}
+
+static PyObject *
+Dialect_get_escapechar(DialectObj *self)
+{
+ return get_nullchar_as_None(self->escapechar);
+}
+
+static PyObject *
+Dialect_get_quotechar(DialectObj *self)
+{
+ return get_nullchar_as_None(self->quotechar);
+}
+
+static PyObject *
+Dialect_get_quoting(DialectObj *self)
+{
+ return PyInt_FromLong(self->quoting);
+}
+
+static int
+_set_bool(const char *name, int *target, PyObject *src, int dflt)
+{
+ if (src == NULL)
+ *target = dflt;
+ else {
+ int b = PyObject_IsTrue(src);
+ if (b < 0)
+ return -1;
+ *target = b;
+ }
+ return 0;
+}
+
+static int
+_set_int(const char *name, int *target, PyObject *src, int dflt)
+{
+ if (src == NULL)
+ *target = dflt;
+ else {
+ if (!PyInt_Check(src)) {
+ PyErr_Format(PyExc_TypeError,
+ "\"%s\" must be an integer", name);
+ return -1;
+ }
+ *target = PyInt_AsLong(src);
+ }
+ return 0;
+}
+
+static int
+_set_char(const char *name, char *target, PyObject *src, char dflt)
+{
+ if (src == NULL)
+ *target = dflt;
+ else {
+ *target = '\0';
+ if (src != Py_None) {
+ Py_ssize_t len;
+ if (!PyString_Check(src)) {
+ PyErr_Format(PyExc_TypeError,
+ "\"%s\" must be string, not %.200s", name,
+ src->ob_type->tp_name);
+ return -1;
+ }
+ len = PyString_GET_SIZE(src);
+ if (len > 1) {
+ PyErr_Format(PyExc_TypeError,
+ "\"%s\" must be an 1-character string",
+ name);
+ return -1;
+ }
+ if (len > 0)
+ *target = *PyString_AS_STRING(src);
+ }
+ }
+ return 0;
+}
+
+static int
+_set_str(const char *name, PyObject **target, PyObject *src, const char *dflt)
+{
+ if (src == NULL)
+ *target = PyString_FromString(dflt);
+ else {
+ if (src == Py_None)
+ *target = NULL;
+ else if (!IS_BASESTRING(src)) {
+ PyErr_Format(PyExc_TypeError,
+ "\"%s\" must be a string", name);
+ return -1;
+ }
+ else {
+ Py_XDECREF(*target);
+ Py_INCREF(src);
+ *target = src;
+ }
+ }
+ return 0;
+}
+
+static int
+dialect_check_quoting(int quoting)
+{
+ StyleDesc *qs = quote_styles;
+
+ for (qs = quote_styles; qs->name; qs++) {
+ if (qs->style == quoting)
+ return 0;
+ }
+ PyErr_Format(PyExc_TypeError, "bad \"quoting\" value");
+ return -1;
+}
+
+#define D_OFF(x) offsetof(DialectObj, x)
+
+static struct PyMemberDef Dialect_memberlist[] = {
+ { "delimiter", T_CHAR, D_OFF(delimiter), READONLY },
+ { "skipinitialspace", T_INT, D_OFF(skipinitialspace), READONLY },
+ { "doublequote", T_INT, D_OFF(doublequote), READONLY },
+ { "strict", T_INT, D_OFF(strict), READONLY },
+ { NULL }
+};
+
+static PyGetSetDef Dialect_getsetlist[] = {
+ { "escapechar", (getter)Dialect_get_escapechar},
+ { "lineterminator", (getter)Dialect_get_lineterminator},
+ { "quotechar", (getter)Dialect_get_quotechar},
+ { "quoting", (getter)Dialect_get_quoting},
+ {NULL},
+};
+
+static void
+Dialect_dealloc(DialectObj *self)
+{
+ Py_XDECREF(self->lineterminator);
+ Py_TYPE(self)->tp_free((PyObject *)self);
+}
+
+static char *dialect_kws[] = {
+ "dialect",
+ "delimiter",
+ "doublequote",
+ "escapechar",
+ "lineterminator",
+ "quotechar",
+ "quoting",
+ "skipinitialspace",
+ "strict",
+ NULL
+};
+
+static PyObject *
+dialect_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+ DialectObj *self;
+ PyObject *ret = NULL;
+ PyObject *dialect = NULL;
+ PyObject *delimiter = NULL;
+ PyObject *doublequote = NULL;
+ PyObject *escapechar = NULL;
+ PyObject *lineterminator = NULL;
+ PyObject *quotechar = NULL;
+ PyObject *quoting = NULL;
+ PyObject *skipinitialspace = NULL;
+ PyObject *strict = NULL;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs,
+ "|OOOOOOOOO", dialect_kws,
+ &dialect,
+ &delimiter,
+ &doublequote,
+ &escapechar,
+ &lineterminator,
+ "echar,
+ "ing,
+ &skipinitialspace,
+ &strict))
+ return NULL;
+
+ if (dialect != NULL) {
+ if (IS_BASESTRING(dialect)) {
+ dialect = get_dialect_from_registry(dialect);
+ if (dialect == NULL)
+ return NULL;
+ }
+ else
+ Py_INCREF(dialect);
+ /* Can we reuse this instance? */
+ if (PyObject_TypeCheck(dialect, &Dialect_Type) &&
+ delimiter == 0 &&
+ doublequote == 0 &&
+ escapechar == 0 &&
+ lineterminator == 0 &&
+ quotechar == 0 &&
+ quoting == 0 &&
+ skipinitialspace == 0 &&
+ strict == 0)
+ return dialect;
+ }
+
+ self = (DialectObj *)type->tp_alloc(type, 0);
+ if (self == NULL) {
+ Py_XDECREF(dialect);
+ return NULL;
+ }
+ self->lineterminator = NULL;
+
+ Py_XINCREF(delimiter);
+ Py_XINCREF(doublequote);
+ Py_XINCREF(escapechar);
+ Py_XINCREF(lineterminator);
+ Py_XINCREF(quotechar);
+ Py_XINCREF(quoting);
+ Py_XINCREF(skipinitialspace);
+ Py_XINCREF(strict);
+ if (dialect != NULL) {
+#define DIALECT_GETATTR(v, n) \
+ if (v == NULL) \
+ v = PyObject_GetAttrString(dialect, n)
+ DIALECT_GETATTR(delimiter, "delimiter");
+ DIALECT_GETATTR(doublequote, "doublequote");
+ DIALECT_GETATTR(escapechar, "escapechar");
+ DIALECT_GETATTR(lineterminator, "lineterminator");
+ DIALECT_GETATTR(quotechar, "quotechar");
+ DIALECT_GETATTR(quoting, "quoting");
+ DIALECT_GETATTR(skipinitialspace, "skipinitialspace");
+ DIALECT_GETATTR(strict, "strict");
+ PyErr_Clear();
+ }
+
+ /* check types and convert to C values */
+#define DIASET(meth, name, target, src, dflt) \
+ if (meth(name, target, src, dflt)) \
+ goto err
+ DIASET(_set_char, "delimiter", &self->delimiter, delimiter, ',');
+ DIASET(_set_bool, "doublequote", &self->doublequote, doublequote, 1);
+ DIASET(_set_char, "escapechar", &self->escapechar, escapechar, 0);
+ DIASET(_set_str, "lineterminator", &self->lineterminator, lineterminator, "\r\n");
+ DIASET(_set_char, "quotechar", &self->quotechar, quotechar, '"');
+ DIASET(_set_int, "quoting", &self->quoting, quoting, QUOTE_MINIMAL);
+ DIASET(_set_bool, "skipinitialspace", &self->skipinitialspace, skipinitialspace, 0);
+ DIASET(_set_bool, "strict", &self->strict, strict, 0);
+
+ /* validate options */
+ if (dialect_check_quoting(self->quoting))
+ goto err;
+ if (self->delimiter == 0) {
+ PyErr_SetString(PyExc_TypeError,
+ "\"delimiter\" must be an 1-character string");
+ goto err;
+ }
+ if (quotechar == Py_None && quoting == NULL)
+ self->quoting = QUOTE_NONE;
+ if (self->quoting != QUOTE_NONE && self->quotechar == 0) {
+ PyErr_SetString(PyExc_TypeError,
+ "quotechar must be set if quoting enabled");
+ goto err;
+ }
+ if (self->lineterminator == 0) {
+ PyErr_SetString(PyExc_TypeError, "lineterminator must be set");
+ goto err;
+ }
+
+ ret = (PyObject *)self;
+ Py_INCREF(self);
+err:
+ Py_XDECREF(self);
+ Py_XDECREF(dialect);
+ Py_XDECREF(delimiter);
+ Py_XDECREF(doublequote);
+ Py_XDECREF(escapechar);
+ Py_XDECREF(lineterminator);
+ Py_XDECREF(quotechar);
+ Py_XDECREF(quoting);
+ Py_XDECREF(skipinitialspace);
+ Py_XDECREF(strict);
+ return ret;
+}
+
+
+PyDoc_STRVAR(Dialect_Type_doc,
+"CSV dialect\n"
+"\n"
+"The Dialect type records CSV parsing and generation options.\n");
+
+static PyTypeObject Dialect_Type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "_csv.Dialect", /* tp_name */
+ sizeof(DialectObj), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ (destructor)Dialect_dealloc, /* tp_dealloc */
+ (printfunc)0, /* tp_print */
+ (getattrfunc)0, /* tp_getattr */
+ (setattrfunc)0, /* tp_setattr */
+ (cmpfunc)0, /* tp_compare */
+ (reprfunc)0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ (hashfunc)0, /* tp_hash */
+ (ternaryfunc)0, /* tp_call */
+ (reprfunc)0, /* tp_str */
+ 0, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
+ Dialect_Type_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ Dialect_memberlist, /* tp_members */
+ Dialect_getsetlist, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ dialect_new, /* tp_new */
+ 0, /* tp_free */
+};
+
+/*
+ * Return an instance of the dialect type, given a Python instance or kwarg
+ * description of the dialect
+ */
+static PyObject *
+_call_dialect(PyObject *dialect_inst, PyObject *kwargs)
+{
+ PyObject *ctor_args;
+ PyObject *dialect;
+
+ ctor_args = Py_BuildValue(dialect_inst ? "(O)" : "()", dialect_inst);
+ if (ctor_args == NULL)
+ return NULL;
+ dialect = PyObject_Call((PyObject *)&Dialect_Type, ctor_args, kwargs);
+ Py_DECREF(ctor_args);
+ return dialect;
+}
+
+/*
+ * READER
+ */
+static int
+parse_save_field(ReaderObj *self)
+{
+ PyObject *field;
+
+ field = PyString_FromStringAndSize(self->field, self->field_len);
+ if (field == NULL)
+ return -1;
+ self->field_len = 0;
+ if (self->numeric_field) {
+ PyObject *tmp;
+
+ self->numeric_field = 0;
+ tmp = PyNumber_Float(field);
+ if (tmp == NULL) {
+ Py_DECREF(field);
+ return -1;
+ }
+ Py_DECREF(field);
+ field = tmp;
+ }
+ PyList_Append(self->fields, field);
+ Py_DECREF(field);
+ return 0;
+}
+
+static int
+parse_grow_buff(ReaderObj *self)
+{
+ if (self->field_size == 0) {
+ self->field_size = 4096;
+ if (self->field != NULL)
+ PyMem_Free(self->field);
+ self->field = PyMem_Malloc(self->field_size);
+ }
+ else {
+ if (self->field_size > INT_MAX / 2) {
+ PyErr_NoMemory();
+ return 0;
+ }
+ self->field_size *= 2;
+ self->field = PyMem_Realloc(self->field, self->field_size);
+ }
+ if (self->field == NULL) {
+ PyErr_NoMemory();
+ return 0;
+ }
+ return 1;
+}
+
+static int
+parse_add_char(ReaderObj *self, char c)
+{
+ if (self->field_len >= field_limit) {
+ PyErr_Format(error_obj, "field larger than field limit (%ld)",
+ field_limit);
+ return -1;
+ }
+ if (self->field_len == self->field_size && !parse_grow_buff(self))
+ return -1;
+ self->field[self->field_len++] = c;
+ return 0;
+}
+
+static int
+parse_process_char(ReaderObj *self, char c)
+{
+ DialectObj *dialect = self->dialect;
+
+ switch (self->state) {
+ case START_RECORD:
+ /* start of record */
+ if (c == '\0')
+ /* empty line - return [] */
+ break;
+ else if (c == '\n' || c == '\r') {
+ self->state = EAT_CRNL;
+ break;
+ }
+ /* normal character - handle as START_FIELD */
+ self->state = START_FIELD;
+ /* fallthru */
+ case START_FIELD:
+ /* expecting field */
+ if (c == '\n' || c == '\r' || c == '\0') {
+ /* save empty field - return [fields] */
+ if (parse_save_field(self) < 0)
+ return -1;
+ self->state = (c == '\0' ? START_RECORD : EAT_CRNL);
+ }
+ else if (c == dialect->quotechar &&
+ dialect->quoting != QUOTE_NONE) {
+ /* start quoted field */
+ self->state = IN_QUOTED_FIELD;
+ }
+ else if (c == dialect->escapechar) {
+ /* possible escaped character */
+ self->state = ESCAPED_CHAR;
+ }
+ else if (c == ' ' && dialect->skipinitialspace)
+ /* ignore space at start of field */
+ ;
+ else if (c == dialect->delimiter) {
+ /* save empty field */
+ if (parse_save_field(self) < 0)
+ return -1;
+ }
+ else {
+ /* begin new unquoted field */
+ if (dialect->quoting == QUOTE_NONNUMERIC)
+ self->numeric_field = 1;
+ if (parse_add_char(self, c) < 0)
+ return -1;
+ self->state = IN_FIELD;
+ }
+ break;
+
+ case ESCAPED_CHAR:
+ if (c == '\0')
+ c = '\n';
+ if (parse_add_char(self, c) < 0)
+ return -1;
+ self->state = IN_FIELD;
+ break;
+
+ case IN_FIELD:
+ /* in unquoted field */
+ if (c == '\n' || c == '\r' || c == '\0') {
+ /* end of line - return [fields] */
+ if (parse_save_field(self) < 0)
+ return -1;
+ self->state = (c == '\0' ? START_RECORD : EAT_CRNL);
+ }
+ else if (c == dialect->escapechar) {
+ /* possible escaped character */
+ self->state = ESCAPED_CHAR;
+ }
+ else if (c == dialect->delimiter) {
+ /* save field - wait for new field */
+ if (parse_save_field(self) < 0)
+ return -1;
+ self->state = START_FIELD;
+ }
+ else {
+ /* normal character - save in field */
+ if (parse_add_char(self, c) < 0)
+ return -1;
+ }
+ break;
+
+ case IN_QUOTED_FIELD:
+ /* in quoted field */
+ if (c == '\0')
+ ;
+ else if (c == dialect->escapechar) {
+ /* Possible escape character */
+ self->state = ESCAPE_IN_QUOTED_FIELD;
+ }
+ else if (c == dialect->quotechar &&
+ dialect->quoting != QUOTE_NONE) {
+ if (dialect->doublequote) {
+ /* doublequote; " represented by "" */
+ self->state = QUOTE_IN_QUOTED_FIELD;
+ }
+ else {
+ /* end of quote part of field */
+ self->state = IN_FIELD;
+ }
+ }
+ else {
+ /* normal character - save in field */
+ if (parse_add_char(self, c) < 0)
+ return -1;
+ }
+ break;
+
+ case ESCAPE_IN_QUOTED_FIELD:
+ if (c == '\0')
+ c = '\n';
+ if (parse_add_char(self, c) < 0)
+ return -1;
+ self->state = IN_QUOTED_FIELD;
+ break;
+
+ case QUOTE_IN_QUOTED_FIELD:
+ /* doublequote - seen a quote in an quoted field */
+ if (dialect->quoting != QUOTE_NONE &&
+ c == dialect->quotechar) {
+ /* save "" as " */
+ if (parse_add_char(self, c) < 0)
+ return -1;
+ self->state = IN_QUOTED_FIELD;
+ }
+ else if (c == dialect->delimiter) {
+ /* save field - wait for new field */
+ if (parse_save_field(self) < 0)
+ return -1;
+ self->state = START_FIELD;
+ }
+ else if (c == '\n' || c == '\r' || c == '\0') {
+ /* end of line - return [fields] */
+ if (parse_save_field(self) < 0)
+ return -1;
+ self->state = (c == '\0' ? START_RECORD : EAT_CRNL);
+ }
+ else if (!dialect->strict) {
+ if (parse_add_char(self, c) < 0)
+ return -1;
+ self->state = IN_FIELD;
+ }
+ else {
+ /* illegal */
+ PyErr_Format(error_obj, "'%c' expected after '%c'",
+ dialect->delimiter,
+ dialect->quotechar);
+ return -1;
+ }
+ break;
+
+ case EAT_CRNL:
+ if (c == '\n' || c == '\r')
+ ;
+ else if (c == '\0')
+ self->state = START_RECORD;
+ else {
+ PyErr_Format(error_obj, "new-line character seen in unquoted field - do you need to open the file in universal-newline mode?");
+ return -1;
+ }
+ break;
+
+ }
+ return 0;
+}
+
+static int
+parse_reset(ReaderObj *self)
+{
+ Py_XDECREF(self->fields);
+ self->fields = PyList_New(0);
+ if (self->fields == NULL)
+ return -1;
+ self->field_len = 0;
+ self->state = START_RECORD;
+ self->numeric_field = 0;
+ return 0;
+}
+
+static PyObject *
+Reader_iternext(ReaderObj *self)
+{
+ PyObject *lineobj;
+ PyObject *fields = NULL;
+ char *line, c;
+ int linelen;
+
+ if (parse_reset(self) < 0)
+ return NULL;
+ do {
+ lineobj = PyIter_Next(self->input_iter);
+ if (lineobj == NULL) {
+ /* End of input OR exception */
+ if (!PyErr_Occurred() && (self->field_len != 0 ||
+ self->state == IN_QUOTED_FIELD)) {
+ if (self->dialect->strict)
+ PyErr_SetString(error_obj, "unexpected end of data");
+ else if (parse_save_field(self) >= 0 )
+ break;
+ }
+ return NULL;
+ }
+ ++self->line_num;
+
+ line = PyString_AsString(lineobj);
+ linelen = PyString_Size(lineobj);
+
+ if (line == NULL || linelen < 0) {
+ Py_DECREF(lineobj);
+ return NULL;
+ }
+ while (linelen--) {
+ c = *line++;
+ if (c == '\0') {
+ Py_DECREF(lineobj);
+ PyErr_Format(error_obj,
+ "line contains NULL byte");
+ goto err;
+ }
+ if (parse_process_char(self, c) < 0) {
+ Py_DECREF(lineobj);
+ goto err;
+ }
+ }
+ Py_DECREF(lineobj);
+ if (parse_process_char(self, 0) < 0)
+ goto err;
+ } while (self->state != START_RECORD);
+
+ fields = self->fields;
+ self->fields = NULL;
+err:
+ return fields;
+}
+
+static void
+Reader_dealloc(ReaderObj *self)
+{
+ PyObject_GC_UnTrack(self);
+ Py_XDECREF(self->dialect);
+ Py_XDECREF(self->input_iter);
+ Py_XDECREF(self->fields);
+ if (self->field != NULL)
+ PyMem_Free(self->field);
+ PyObject_GC_Del(self);
+}
+
+static int
+Reader_traverse(ReaderObj *self, visitproc visit, void *arg)
+{
+ Py_VISIT(self->dialect);
+ Py_VISIT(self->input_iter);
+ Py_VISIT(self->fields);
+ return 0;
+}
+
+static int
+Reader_clear(ReaderObj *self)
+{
+ Py_CLEAR(self->dialect);
+ Py_CLEAR(self->input_iter);
+ Py_CLEAR(self->fields);
+ return 0;
+}
+
+PyDoc_STRVAR(Reader_Type_doc,
+"CSV reader\n"
+"\n"
+"Reader objects are responsible for reading and parsing tabular data\n"
+"in CSV format.\n"
+);
+
+static struct PyMethodDef Reader_methods[] = {
+ { NULL, NULL }
+};
+#define R_OFF(x) offsetof(ReaderObj, x)
+
+static struct PyMemberDef Reader_memberlist[] = {
+ { "dialect", T_OBJECT, R_OFF(dialect), RO },
+ { "line_num", T_ULONG, R_OFF(line_num), RO },
+ { NULL }
+};
+
+
+static PyTypeObject Reader_Type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "_csv.reader", /*tp_name*/
+ sizeof(ReaderObj), /*tp_basicsize*/
+ 0, /*tp_itemsize*/
+ /* methods */
+ (destructor)Reader_dealloc, /*tp_dealloc*/
+ (printfunc)0, /*tp_print*/
+ (getattrfunc)0, /*tp_getattr*/
+ (setattrfunc)0, /*tp_setattr*/
+ (cmpfunc)0, /*tp_compare*/
+ (reprfunc)0, /*tp_repr*/
+ 0, /*tp_as_number*/
+ 0, /*tp_as_sequence*/
+ 0, /*tp_as_mapping*/
+ (hashfunc)0, /*tp_hash*/
+ (ternaryfunc)0, /*tp_call*/
+ (reprfunc)0, /*tp_str*/
+ 0, /*tp_getattro*/
+ 0, /*tp_setattro*/
+ 0, /*tp_as_buffer*/
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+ Reader_Type_doc, /*tp_doc*/
+ (traverseproc)Reader_traverse, /*tp_traverse*/
+ (inquiry)Reader_clear, /*tp_clear*/
+ 0, /*tp_richcompare*/
+ 0, /*tp_weaklistoffset*/
+ PyObject_SelfIter, /*tp_iter*/
+ (getiterfunc)Reader_iternext, /*tp_iternext*/
+ Reader_methods, /*tp_methods*/
+ Reader_memberlist, /*tp_members*/
+ 0, /*tp_getset*/
+
+};
+
+static PyObject *
+csv_reader(PyObject *module, PyObject *args, PyObject *keyword_args)
+{
+ PyObject * iterator, * dialect = NULL;
+ ReaderObj * self = PyObject_GC_New(ReaderObj, &Reader_Type);
+
+ if (!self)
+ return NULL;
+
+ self->dialect = NULL;
+ self->fields = NULL;
+ self->input_iter = NULL;
+ self->field = NULL;
+ self->field_size = 0;
+ self->line_num = 0;
+
+ if (parse_reset(self) < 0) {
+ Py_DECREF(self);
+ return NULL;
+ }
+
+ if (!PyArg_UnpackTuple(args, "", 1, 2, &iterator, &dialect)) {
+ Py_DECREF(self);
+ return NULL;
+ }
+ self->input_iter = PyObject_GetIter(iterator);
+ if (self->input_iter == NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "argument 1 must be an iterator");
+ Py_DECREF(self);
+ return NULL;
+ }
+ self->dialect = (DialectObj *)_call_dialect(dialect, keyword_args);
+ if (self->dialect == NULL) {
+ Py_DECREF(self);
+ return NULL;
+ }
+
+ PyObject_GC_Track(self);
+ return (PyObject *)self;
+}
+
+/*
+ * WRITER
+ */
+/* ---------------------------------------------------------------- */
+static void
+join_reset(WriterObj *self)
+{
+ self->rec_len = 0;
+ self->num_fields = 0;
+}
+
+#define MEM_INCR 32768
+
+/* Calculate new record length or append field to record. Return new
+ * record length.
+ */
+static int
+join_append_data(WriterObj *self, char *field, int quote_empty,
+ int *quoted, int copy_phase)
+{
+ DialectObj *dialect = self->dialect;
+ int i, rec_len;
+ char *lineterm;
+
+#define ADDCH(c) \
+ do {\
+ if (copy_phase) \
+ self->rec[rec_len] = c;\
+ rec_len++;\
+ } while(0)
+
+ lineterm = PyString_AsString(dialect->lineterminator);
+ if (lineterm == NULL)
+ return -1;
+
+ rec_len = self->rec_len;
+
+ /* If this is not the first field we need a field separator */
+ if (self->num_fields > 0)
+ ADDCH(dialect->delimiter);
+
+ /* Handle preceding quote */
+ if (copy_phase && *quoted)
+ ADDCH(dialect->quotechar);
+
+ /* Copy/count field data */
+ for (i = 0;; i++) {
+ char c = field[i];
+ int want_escape = 0;
+
+ if (c == '\0')
+ break;
+
+ if (c == dialect->delimiter ||
+ c == dialect->escapechar ||
+ c == dialect->quotechar ||
+ strchr(lineterm, c)) {
+ if (dialect->quoting == QUOTE_NONE)
+ want_escape = 1;
+ else {
+ if (c == dialect->quotechar) {
+ if (dialect->doublequote)
+ ADDCH(dialect->quotechar);
+ else
+ want_escape = 1;
+ }
+ if (!want_escape)
+ *quoted = 1;
+ }
+ if (want_escape) {
+ if (!dialect->escapechar) {
+ PyErr_Format(error_obj,
+ "need to escape, but no escapechar set");
+ return -1;
+ }
+ ADDCH(dialect->escapechar);
+ }
+ }
+ /* Copy field character into record buffer.
+ */
+ ADDCH(c);
+ }
+
+ /* If field is empty check if it needs to be quoted.
+ */
+ if (i == 0 && quote_empty) {
+ if (dialect->quoting == QUOTE_NONE) {
+ PyErr_Format(error_obj,
+ "single empty field record must be quoted");
+ return -1;
+ }
+ else
+ *quoted = 1;
+ }
+
+ if (*quoted) {
+ if (copy_phase)
+ ADDCH(dialect->quotechar);
+ else
+ rec_len += 2;
+ }
+ return rec_len;
+#undef ADDCH
+}
+
+static int
+join_check_rec_size(WriterObj *self, int rec_len)
+{
+
+ if (rec_len < 0 || rec_len > INT_MAX - MEM_INCR) {
+ PyErr_NoMemory();
+ return 0;
+ }
+
+ if (rec_len > self->rec_size) {
+ if (self->rec_size == 0) {
+ self->rec_size = (rec_len / MEM_INCR + 1) * MEM_INCR;
+ if (self->rec != NULL)
+ PyMem_Free(self->rec);
+ self->rec = PyMem_Malloc(self->rec_size);
+ }
+ else {
+ char *old_rec = self->rec;
+
+ self->rec_size = (rec_len / MEM_INCR + 1) * MEM_INCR;
+ self->rec = PyMem_Realloc(self->rec, self->rec_size);
+ if (self->rec == NULL)
+ PyMem_Free(old_rec);
+ }
+ if (self->rec == NULL) {
+ PyErr_NoMemory();
+ return 0;
+ }
+ }
+ return 1;
+}
+
+static int
+join_append(WriterObj *self, char *field, int *quoted, int quote_empty)
+{
+ int rec_len;
+
+ rec_len = join_append_data(self, field, quote_empty, quoted, 0);
+ if (rec_len < 0)
+ return 0;
+
+ /* grow record buffer if necessary */
+ if (!join_check_rec_size(self, rec_len))
+ return 0;
+
+ self->rec_len = join_append_data(self, field, quote_empty, quoted, 1);
+ self->num_fields++;
+
+ return 1;
+}
+
+static int
+join_append_lineterminator(WriterObj *self)
+{
+ int terminator_len;
+ char *terminator;
+
+ terminator_len = PyString_Size(self->dialect->lineterminator);
+ if (terminator_len == -1)
+ return 0;
+
+ /* grow record buffer if necessary */
+ if (!join_check_rec_size(self, self->rec_len + terminator_len))
+ return 0;
+
+ terminator = PyString_AsString(self->dialect->lineterminator);
+ if (terminator == NULL)
+ return 0;
+ memmove(self->rec + self->rec_len, terminator, terminator_len);
+ self->rec_len += terminator_len;
+
+ return 1;
+}
+
+PyDoc_STRVAR(csv_writerow_doc,
+"writerow(sequence)\n"
+"\n"
+"Construct and write a CSV record from a sequence of fields. Non-string\n"
+"elements will be converted to string.");
+
+static PyObject *
+csv_writerow(WriterObj *self, PyObject *seq)
+{
+ DialectObj *dialect = self->dialect;
+ int len, i;
+
+ if (!PySequence_Check(seq))
+ return PyErr_Format(error_obj, "sequence expected");
+
+ len = PySequence_Length(seq);
+ if (len < 0)
+ return NULL;
+
+ /* Join all fields in internal buffer.
+ */
+ join_reset(self);
+ for (i = 0; i < len; i++) {
+ PyObject *field;
+ int append_ok;
+ int quoted;
+
+ field = PySequence_GetItem(seq, i);
+ if (field == NULL)
+ return NULL;
+
+ switch (dialect->quoting) {
+ case QUOTE_NONNUMERIC:
+ quoted = !PyNumber_Check(field);
+ break;
+ case QUOTE_ALL:
+ quoted = 1;
+ break;
+ default:
+ quoted = 0;
+ break;
+ }
+
+ if (PyString_Check(field)) {
+ append_ok = join_append(self,
+ PyString_AS_STRING(field),
+ "ed, len == 1);
+ Py_DECREF(field);
+ }
+ else if (field == Py_None) {
+ append_ok = join_append(self, "", "ed, len == 1);
+ Py_DECREF(field);
+ }
+ else {
+ PyObject *str;
+
+ if (PyFloat_Check(field)) {
+ str = PyObject_Repr(field);
+ } else {
+ str = PyObject_Str(field);
+ }
+ Py_DECREF(field);
+ if (str == NULL)
+ return NULL;
+
+ append_ok = join_append(self, PyString_AS_STRING(str),
+ "ed, len == 1);
+ Py_DECREF(str);
+ }
+ if (!append_ok)
+ return NULL;
+ }
+
+ /* Add line terminator.
+ */
+ if (!join_append_lineterminator(self))
+ return 0;
+
+ return PyObject_CallFunction(self->writeline,
+ "(s#)", self->rec, self->rec_len);
+}
+
+PyDoc_STRVAR(csv_writerows_doc,
+"writerows(sequence of sequences)\n"
+"\n"
+"Construct and write a series of sequences to a csv file. Non-string\n"
+"elements will be converted to string.");
+
+static PyObject *
+csv_writerows(WriterObj *self, PyObject *seqseq)
+{
+ PyObject *row_iter, *row_obj, *result;
+
+ row_iter = PyObject_GetIter(seqseq);
+ if (row_iter == NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "writerows() argument must be iterable");
+ return NULL;
+ }
+ while ((row_obj = PyIter_Next(row_iter))) {
+ result = csv_writerow(self, row_obj);
+ Py_DECREF(row_obj);
+ if (!result) {
+ Py_DECREF(row_iter);
+ return NULL;
+ }
+ else
+ Py_DECREF(result);
+ }
+ Py_DECREF(row_iter);
+ if (PyErr_Occurred())
+ return NULL;
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static struct PyMethodDef Writer_methods[] = {
+ { "writerow", (PyCFunction)csv_writerow, METH_O, csv_writerow_doc},
+ { "writerows", (PyCFunction)csv_writerows, METH_O, csv_writerows_doc},
+ { NULL, NULL }
+};
+
+#define W_OFF(x) offsetof(WriterObj, x)
+
+static struct PyMemberDef Writer_memberlist[] = {
+ { "dialect", T_OBJECT, W_OFF(dialect), RO },
+ { NULL }
+};
+
+static void
+Writer_dealloc(WriterObj *self)
+{
+ PyObject_GC_UnTrack(self);
+ Py_XDECREF(self->dialect);
+ Py_XDECREF(self->writeline);
+ if (self->rec != NULL)
+ PyMem_Free(self->rec);
+ PyObject_GC_Del(self);
+}
+
+static int
+Writer_traverse(WriterObj *self, visitproc visit, void *arg)
+{
+ Py_VISIT(self->dialect);
+ Py_VISIT(self->writeline);
+ return 0;
+}
+
+static int
+Writer_clear(WriterObj *self)
+{
+ Py_CLEAR(self->dialect);
+ Py_CLEAR(self->writeline);
+ return 0;
+}
+
+PyDoc_STRVAR(Writer_Type_doc,
+"CSV writer\n"
+"\n"
+"Writer objects are responsible for generating tabular data\n"
+"in CSV format from sequence input.\n"
+);
+
+static PyTypeObject Writer_Type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "_csv.writer", /*tp_name*/
+ sizeof(WriterObj), /*tp_basicsize*/
+ 0, /*tp_itemsize*/
+ /* methods */
+ (destructor)Writer_dealloc, /*tp_dealloc*/
+ (printfunc)0, /*tp_print*/
+ (getattrfunc)0, /*tp_getattr*/
+ (setattrfunc)0, /*tp_setattr*/
+ (cmpfunc)0, /*tp_compare*/
+ (reprfunc)0, /*tp_repr*/
+ 0, /*tp_as_number*/
+ 0, /*tp_as_sequence*/
+ 0, /*tp_as_mapping*/
+ (hashfunc)0, /*tp_hash*/
+ (ternaryfunc)0, /*tp_call*/
+ (reprfunc)0, /*tp_str*/
+ 0, /*tp_getattro*/
+ 0, /*tp_setattro*/
+ 0, /*tp_as_buffer*/
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+ Writer_Type_doc,
+ (traverseproc)Writer_traverse, /*tp_traverse*/
+ (inquiry)Writer_clear, /*tp_clear*/
+ 0, /*tp_richcompare*/
+ 0, /*tp_weaklistoffset*/
+ (getiterfunc)0, /*tp_iter*/
+ (getiterfunc)0, /*tp_iternext*/
+ Writer_methods, /*tp_methods*/
+ Writer_memberlist, /*tp_members*/
+ 0, /*tp_getset*/
+};
+
+static PyObject *
+csv_writer(PyObject *module, PyObject *args, PyObject *keyword_args)
+{
+ PyObject * output_file, * dialect = NULL;
+ WriterObj * self = PyObject_GC_New(WriterObj, &Writer_Type);
+
+ if (!self)
+ return NULL;
+
+ self->dialect = NULL;
+ self->writeline = NULL;
+
+ self->rec = NULL;
+ self->rec_size = 0;
+ self->rec_len = 0;
+ self->num_fields = 0;
+
+ if (!PyArg_UnpackTuple(args, "", 1, 2, &output_file, &dialect)) {
+ Py_DECREF(self);
+ return NULL;
+ }
+ self->writeline = PyObject_GetAttrString(output_file, "write");
+ if (self->writeline == NULL || !PyCallable_Check(self->writeline)) {
+ PyErr_SetString(PyExc_TypeError,
+ "argument 1 must have a \"write\" method");
+ Py_DECREF(self);
+ return NULL;
+ }
+ self->dialect = (DialectObj *)_call_dialect(dialect, keyword_args);
+ if (self->dialect == NULL) {
+ Py_DECREF(self);
+ return NULL;
+ }
+ PyObject_GC_Track(self);
+ return (PyObject *)self;
+}
+
+/*
+ * DIALECT REGISTRY
+ */
+static PyObject *
+csv_list_dialects(PyObject *module, PyObject *args)
+{
+ return PyDict_Keys(dialects);
+}
+
+static PyObject *
+csv_register_dialect(PyObject *module, PyObject *args, PyObject *kwargs)
+{
+ PyObject *name_obj, *dialect_obj = NULL;
+ PyObject *dialect;
+
+ if (!PyArg_UnpackTuple(args, "", 1, 2, &name_obj, &dialect_obj))
+ return NULL;
+ if (!IS_BASESTRING(name_obj)) {
+ PyErr_SetString(PyExc_TypeError,
+ "dialect name must be a string or unicode");
+ return NULL;
+ }
+ dialect = _call_dialect(dialect_obj, kwargs);
+ if (dialect == NULL)
+ return NULL;
+ if (PyDict_SetItem(dialects, name_obj, dialect) < 0) {
+ Py_DECREF(dialect);
+ return NULL;
+ }
+ Py_DECREF(dialect);
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static PyObject *
+csv_unregister_dialect(PyObject *module, PyObject *name_obj)
+{
+ if (PyDict_DelItem(dialects, name_obj) < 0)
+ return PyErr_Format(error_obj, "unknown dialect");
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static PyObject *
+csv_get_dialect(PyObject *module, PyObject *name_obj)
+{
+ return get_dialect_from_registry(name_obj);
+}
+
+static PyObject *
+csv_field_size_limit(PyObject *module, PyObject *args)
+{
+ PyObject *new_limit = NULL;
+ long old_limit = field_limit;
+
+ if (!PyArg_UnpackTuple(args, "field_size_limit", 0, 1, &new_limit))
+ return NULL;
+ if (new_limit != NULL) {
+ if (!PyInt_Check(new_limit)) {
+ PyErr_Format(PyExc_TypeError,
+ "limit must be an integer");
+ return NULL;
+ }
+ field_limit = PyInt_AsLong(new_limit);
+ }
+ return PyInt_FromLong(old_limit);
+}
+
+/*
+ * MODULE
+ */
+
+PyDoc_STRVAR(csv_module_doc,
+"CSV parsing and writing.\n"
+"\n"
+"This module provides classes that assist in the reading and writing\n"
+"of Comma Separated Value (CSV) files, and implements the interface\n"
+"described by PEP 305. Although many CSV files are simple to parse,\n"
+"the format is not formally defined by a stable specification and\n"
+"is subtle enough that parsing lines of a CSV file with something\n"
+"like line.split(\",\") is bound to fail. The module supports three\n"
+"basic APIs: reading, writing, and registration of dialects.\n"
+"\n"
+"\n"
+"DIALECT REGISTRATION:\n"
+"\n"
+"Readers and writers support a dialect argument, which is a convenient\n"
+"handle on a group of settings. When the dialect argument is a string,\n"
+"it identifies one of the dialects previously registered with the module.\n"
+"If it is a class or instance, the attributes of the argument are used as\n"
+"the settings for the reader or writer:\n"
+"\n"
+" class excel:\n"
+" delimiter = ','\n"
+" quotechar = '\"'\n"
+" escapechar = None\n"
+" doublequote = True\n"
+" skipinitialspace = False\n"
+" lineterminator = '\\r\\n'\n"
+" quoting = QUOTE_MINIMAL\n"
+"\n"
+"SETTINGS:\n"
+"\n"
+" * quotechar - specifies a one-character string to use as the \n"
+" quoting character. It defaults to '\"'.\n"
+" * delimiter - specifies a one-character string to use as the \n"
+" field separator. It defaults to ','.\n"
+" * skipinitialspace - specifies how to interpret whitespace which\n"
+" immediately follows a delimiter. It defaults to False, which\n"
+" means that whitespace immediately following a delimiter is part\n"
+" of the following field.\n"
+" * lineterminator - specifies the character sequence which should \n"
+" terminate rows.\n"
+" * quoting - controls when quotes should be generated by the writer.\n"
+" It can take on any of the following module constants:\n"
+"\n"
+" csv.QUOTE_MINIMAL means only when required, for example, when a\n"
+" field contains either the quotechar or the delimiter\n"
+" csv.QUOTE_ALL means that quotes are always placed around fields.\n"
+" csv.QUOTE_NONNUMERIC means that quotes are always placed around\n"
+" fields which do not parse as integers or floating point\n"
+" numbers.\n"
+" csv.QUOTE_NONE means that quotes are never placed around fields.\n"
+" * escapechar - specifies a one-character string used to escape \n"
+" the delimiter when quoting is set to QUOTE_NONE.\n"
+" * doublequote - controls the handling of quotes inside fields. When\n"
+" True, two consecutive quotes are interpreted as one during read,\n"
+" and when writing, each quote character embedded in the data is\n"
+" written as two quotes\n");
+
+PyDoc_STRVAR(csv_reader_doc,
+" csv_reader = reader(iterable [, dialect='excel']\n"
+" [optional keyword args])\n"
+" for row in csv_reader:\n"
+" process(row)\n"
+"\n"
+"The \"iterable\" argument can be any object that returns a line\n"
+"of input for each iteration, such as a file object or a list. The\n"
+"optional \"dialect\" parameter is discussed below. The function\n"
+"also accepts optional keyword arguments which override settings\n"
+"provided by the dialect.\n"
+"\n"
+"The returned object is an iterator. Each iteration returns a row\n"
+"of the CSV file (which can span multiple input lines):\n");
+
+PyDoc_STRVAR(csv_writer_doc,
+" csv_writer = csv.writer(fileobj [, dialect='excel']\n"
+" [optional keyword args])\n"
+" for row in sequence:\n"
+" csv_writer.writerow(row)\n"
+"\n"
+" [or]\n"
+"\n"
+" csv_writer = csv.writer(fileobj [, dialect='excel']\n"
+" [optional keyword args])\n"
+" csv_writer.writerows(rows)\n"
+"\n"
+"The \"fileobj\" argument can be any object that supports the file API.\n");
+
+PyDoc_STRVAR(csv_list_dialects_doc,
+"Return a list of all know dialect names.\n"
+" names = csv.list_dialects()");
+
+PyDoc_STRVAR(csv_get_dialect_doc,
+"Return the dialect instance associated with name.\n"
+" dialect = csv.get_dialect(name)");
+
+PyDoc_STRVAR(csv_register_dialect_doc,
+"Create a mapping from a string name to a dialect class.\n"
+" dialect = csv.register_dialect(name, dialect)");
+
+PyDoc_STRVAR(csv_unregister_dialect_doc,
+"Delete the name/dialect mapping associated with a string name.\n"
+" csv.unregister_dialect(name)");
+
+PyDoc_STRVAR(csv_field_size_limit_doc,
+"Sets an upper limit on parsed fields.\n"
+" csv.field_size_limit([limit])\n"
+"\n"
+"Returns old limit. If limit is not given, no new limit is set and\n"
+"the old limit is returned");
+
+static struct PyMethodDef csv_methods[] = {
+ { "reader", (PyCFunction)csv_reader,
+ METH_VARARGS | METH_KEYWORDS, csv_reader_doc},
+ { "writer", (PyCFunction)csv_writer,
+ METH_VARARGS | METH_KEYWORDS, csv_writer_doc},
+ { "list_dialects", (PyCFunction)csv_list_dialects,
+ METH_NOARGS, csv_list_dialects_doc},
+ { "register_dialect", (PyCFunction)csv_register_dialect,
+ METH_VARARGS | METH_KEYWORDS, csv_register_dialect_doc},
+ { "unregister_dialect", (PyCFunction)csv_unregister_dialect,
+ METH_O, csv_unregister_dialect_doc},
+ { "get_dialect", (PyCFunction)csv_get_dialect,
+ METH_O, csv_get_dialect_doc},
+ { "field_size_limit", (PyCFunction)csv_field_size_limit,
+ METH_VARARGS, csv_field_size_limit_doc},
+ { NULL, NULL }
+};
+
+PyMODINIT_FUNC
+init_csv(void)
+{
+ PyObject *module;
+ StyleDesc *style;
+
+ if (PyType_Ready(&Dialect_Type) < 0)
+ return;
+
+ if (PyType_Ready(&Reader_Type) < 0)
+ return;
+
+ if (PyType_Ready(&Writer_Type) < 0)
+ return;
+
+ /* Create the module and add the functions */
+ module = Py_InitModule3("_csv", csv_methods, csv_module_doc);
+ if (module == NULL)
+ return;
+
+ /* Add version to the module. */
+ if (PyModule_AddStringConstant(module, "__version__",
+ MODULE_VERSION) == -1)
+ return;
+
+ /* Add _dialects dictionary */
+ dialects = PyDict_New();
+ if (dialects == NULL)
+ return;
+ if (PyModule_AddObject(module, "_dialects", dialects))
+ return;
+
+ /* Add quote styles into dictionary */
+ for (style = quote_styles; style->name; style++) {
+ if (PyModule_AddIntConstant(module, style->name,
+ style->style) == -1)
+ return;
+ }
+
+ /* Add the Dialect type */
+ Py_INCREF(&Dialect_Type);
+ if (PyModule_AddObject(module, "Dialect", (PyObject *)&Dialect_Type))
+ return;
+
+ /* Add the CSV exception object to the module. */
+ error_obj = PyErr_NewException("_csv.Error", NULL, NULL);
+ if (error_obj == NULL)
+ return;
+ PyModule_AddObject(module, "Error", error_obj);
+}
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